Soil degradation by erosion Tập 12 Số 6 - Trang 519-539 - 2001
R. Lal
AbstractSoil degradation by accelerated erosion is a serious problem and will
remain so during the 21st century, especially in developing countries of the
tropics and subtropics. Yet, its extent, severity, and economic and
environmental impacts are debatable. Estimates of global and regional land area
affected are tentative and subjective. Results of field measurements are often
technique‐dependen... hiện toàn bộ
SOIL EROSION, CONSERVATION, AND ECO‐ENVIRONMENT CHANGES IN THE LOESS PLATEAU OF CHINA Tập 24 Số 5 - Trang 499-510 - 2013
Guangju Zhao, Xingmin Mu, Zhongming Wen, Fei Wang, Peng Gao
ABSTRACTAs one of the best‐known areas in the world, the Loess Plateau, has long
been suffering from serious soil erosion. The present paper reviewed the
historical variation of climate, vegetation cover, and environment changes in
order to understand the causes of severe soil erosion. Documentary evidence
indicated that climate changes and vegetation cover were the dominant natural
factors influe... hiện toàn bộ
Karst rocky desertification in southwestern China: geomorphology, landuse, impact and rehabilitation Tập 15 Số 2 - Trang 115-121 - 2004
Shoujun Wang, Quan-Zhen Liu, Duomi Zhang
AbstractKarst rocky desertification is a process of land degradation involving
serious soil erosion, extensive exposure of basement rocks, drastic decrease in
soil productivity, and the appearance of a desert‐like landscape. It is caused
by irrational, intensive land use on a fragile karst geo‐ecological environment.
The process is expanding rapidly, and it is daily reducing the living space of
re... hiện toàn bộ
Biological Indices for Soil Quality Evaluation: Perspectives and Limitations Tập 27 Số 1 - Trang 14-25 - 2016
Jorge Paz‐Ferreiro, Shenglei Fu
AbstractSoil quality is threatened by the increase in human population and by
the fact that most of the cultivable land is intensively used. The initial
interest in this topic focused on defining soil quality but shifted into how to
measure soil quality in the late 1990s. There is a general agreement that soil
biochemical, microbiological and biological properties are more suitable than
physical a... hiện toàn bộ
Soil Conservation Through Sediment Trapping: A Review Tập 26 Số 6 - Trang 544-556 - 2015
Mulatie Mekonnen, Saskia Keesstra, L. Stroosnijder, Jantiene Baartman, Jerry Maroulis
AbstractPreventing the off‐site effects of soil erosion is an essential part of
good catchment management. Most efforts are in the form of on‐site soil and
water conservation measures. However, sediment trapping can be an alternative
(additional) measure to prevent the negative off‐site effects of soil erosion.
Therefore, not all efforts should focus solely on on‐site soil conservation but
also on... hiện toàn bộ
Carbon Depletion by Plowing and its Restoration by No‐Till Cropping Systems in Oxisols of Subtropical and Tropical Agro‐Ecoregions in Brazil Tập 26 Số 6 - Trang 531-543 - 2015
João Carlos de Moraes Sá, Lucien Séguy, Florent Tivet, Rattan Lal, Serge Bouzinac, Paulo Rogério Borszowskei, Cléver Briedis, Josiane Bürkner dos Santos, Daiani da Cruz Hartman, Clayton Giani Bertoloni, Jadir Aparecido Rosa, Theodor Friedrich
AbstractThe continuous use of plowing for grain production has been the
principal cause of soil degradation. This project was formulated on the
hypothesis that the intensification of cropping systems by increasing biomass‐C
input and its biodiversity under no‐till (NT) drives soil restoration of
degraded agro‐ecosystem. The present study conducted at subtropical [Ponta
Grossa (PG) site] and tropic... hiện toàn bộ
Organic Carbon Dynamics in Different Soil Types After Conversion of Forest to Agriculture Tập 26 Số 3 - Trang 272-283 - 2015
Thilde Bech Bruun, Bo Elberling, Andreas de Neergaard, Jakob Magid
AbstractState‐of‐the‐art predictive models of soil organic carbon (SOC) dynamics
associated with land use changes are unable to reflect the diversity of tropical
soil types as the knowledge of contrasting site‐specific factors in mediating
the response of the SOC pool is sparse. This paper examines the influence of
soil type and management on SOC dynamics following the conversion of forests to
ann... hiện toàn bộ
Land abandonment, landscape evolution, and soil erosion in a Spanish Mediterranean mountain region: The case of Camero Viejo Tập 22 Số 6 - Trang 537-550 - 2011
José Arnáez Vadillo, Teodoro Lasanta Martínez, María Paz Errea Abad, Luís Ortigosa
AbstractThe Spanish Mediterranean mountains have played an important social and
economic role for many centuries. However, since the 1950s these regions have
been considered of little economic interest, and this has led to the abandonment
of villages, reduced productive activity, and significant changes in the
landscape. In the last 50 years the Camero Viejo region (Iberian System,
northeast Spain... hiện toàn bộ