عنوان

Modeled soil erosion potential is low across California's annual rangelands

شماره

LA8vw1b70n

زبان متن نوشتاري يا گفتاري و مانند آن

انگلیسی

عنوان اصلي

Modeled soil erosion potential is low across California's annual rangelands

نام عام مواد

[Article]

نام نخستين پديدآور

Salls, Wilson B; Larsen, Royce; Lewis, David J; Roche, Leslie M; Eastburn, Danny J; Hollander, Allan D; Walkinshaw, Mike; Kaffka, Stephen; Tate, Kenneth W; O'Geen, Anthony T

متن يادداشت

We used the Revised Universal Soil Loss Equation (RUSLE) to evaluate how different residual forage dry matter (RDM) levels affect erosion potential in rangelands across California. The model was adapted to operate in a geographic information system (GIS) to model 14.8 million acres (6.0 million hectares) of land. Average erosion potential was low among all RDM scenarios and increased from an estimated 0.05 ton per acre per year (0.11 megagram per hectare per year) with the high RDM scenario to 0.12 ton per acre per year (0.27 megagram per hectare per year) with the low RDM scenario. Considering all RDM scenarios, fewer than 174,733 acres (70,710 hectares, or 1.2% of land) had erosion potential that exceeded soil loss tolerance values. Although achieving a uniform RDM target across a landscape may be an oversimplification of reality, simulations suggest that erosion potential on average is low in California's annual rangelands across high, moderate and low RDM recommendations. Moreover, our findings indicate that grazing management (maintaining moderate or high RDM) to mitigate erosion can be effective when targeted at areas of high vulnerability.

تاريخ نشر

2018

عنوان

California Agriculture

شماره جلد

72/3

عنصر شناسه اي

Salls, Wilson B; Larsen, Royce; Lewis, David J; Roche, Leslie M; Eastburn, Danny J; Hollander, Allan D; Walkinshaw, Mike; Kaffka, Stephen; Tate, Kenneth W; O'Geen, Anthony T

نام الکترونيکي

نوع ماده

[Article]

کد کاربرگه

275578

سطح دسترسي

a

تكميل شده

Y